Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

165270 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 6131, results 153251 - 153275

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Age of marginal Wisconsin drift at Corry, northwestern Pennsylvania
J.B. Droste, M. Rubin, G. W. White
1959, Science (130) 1760-1760
Marl began to accumulate about 14,000 years ago, as determined by radiocarbon dating, in a pond in a kettle hole in Kent drift at Corry, Pa., 9 miles inside the Wisconsin drift margin. This radiocarbon age represents the minimum time since the disappearance of the ice from Corry and confirms...
Peneconcordant uranium deposit: A proposed term
W.I. Finch
1959, Economic Geology (54) 944-946
The term peneconcordant is proposed to describe the form of the numerous and highly productive U deposits in sedimentary rocks of the Colorado Plateau, Wyoming, the Dakotas, and Texas. Peneconcordant U deposits are tabular, lenticular, or irregularly-shaped masses of widely differing size that are, in general, concordant to the gross...
Some aspects of the origin of the Ironwood iron-formation of Michigan and Wisconsin
N.K. Huber
1959, Economic Geology (54) 82-118
The Ironwood iron-formation of the Gogebic Range of Michigan and Wisconsin is made up of several rock types, each of which is characterized by a different iron-rich mineral: hematite, magnetite, pyrite, iron carbonate, or iron silicate (minnesotaite, stilpnomelane). Where the Ironwood iron-formation is relatively unaltered the Plymouth, Norrie, and Anvil...
Time-lapse motion picture technique applied to the study of geological processes
R. D. Miller, D. R. Crandell
1959, Science (130) 795-796
Light-weight, battery-operated timers were built and coupled to 16-mm motion-picture cameras having apertures controlled by photoelectric cells. The cameras were placed adjacent to Emmons Glacier on Mount Rainier. The film obtained confirms the view that exterior time-lapse photography can be applied to the study of slow-acting geologic processes....
Role of fluid pressure in mechanics of overthrust faulting: II. Overthrust belt in geosynclinal area of western Wyoming in light of fluid-pressure hypothesis
William W. Rubey, M. King Hubbert
1959, GSA Bulletin (70) 167-206
Pressures of interstitial fluids significantly greater than the normal hydrostatic pressure are known in many parts of the world. Many occurrences are in thick sections of relatively young sediments; some are in areas that have been intensely deformed. Abnormal fluid pressures in the Gulf Coast region are associated with thick...
The petroleum potential of the emerged and submerged Atlantic coastal plain of the United States
J. E. Johnston, James Trumbull, G. P. Eaton
1959, Conference Paper, World Petroleum Congress Proceedings
Increasing geological and geophysical information about the Atlantic continental shelf of the United States is changing the basis for judging the area's petroleum potential. No nation can afford to overlook an area that overlies 175,000 cubic miles (730,000 km3) of possibly petroliferous sediments (including the emerged coastal plain), though the...
Water‐level fluctuations caused by Montana earthquake
Jose Alves Da Costa
1959, Eos, Transactions, American Geophysical Union (40) 346-346
The major earthquake of August 17, 1959, near the Montana‐Wyoming border had marked effects on water levels and artesian pressures in wells throughout the United States. Preliminary reports from field offices of the U. S. Geological Survey in 21 states show that water‐level fluctuations were automatically recorded in 136 observation...
Turtleback faults of Death Valley, California: A reinterpretation
Harald Drewes
1959, GSA Bulletin (70) 1497-1508
Turtlebacks are smooth, curved surfaces, which form north-northwestward-plunging elongate domes on the east side of Death Valley. These surfaces are roughly parallel to bedding or foliation of anticlines in Precambrian schist, gneiss, and marble. Late Cenozoic fan and playa deposits are faulted over these surfaces along the turtleback faults. Previously...
History of Imuruk Lake, Seward Peninsula, Alaska
David M. Hopkins
1959, GSA Bulletin (70) 1033-1046
A study of Imuruk Lake, a large, shallow lake in north-central Seward Peninsula, Alaska, illuminates the climatic history of northwestern Alaska and the tectonic history of central Seward Peninsula during Pleistocene and Recent time. Special interest attaches to the older lake sediments, because they contain evidence concerning the climate, fauna, and...
Granitization, migmatization, and fusion in the northern Entiat Mountains, Washington
D. F. Crowder
1959, GSA Bulletin (70) 827-878
A tabular quartz diorite complex extends along the Entiat Mountains, which form a southeast-trending spur of the Northern Cascade Mountains. The country rocks of the complex are biotite gneiss, probably derived from arkosic sedimentary rocks, and hornblende schist, probably derived from basic volcanic rocks. Their present mineral composition is typical of...
Primary borates in playa deposits: Minerals of high hydration
Siegfried J. Muessig
1959, Economic Geology (54) 495-501
The primary borate minerals in nonmarine bedded borate deposits - those of the playa type, and their deformed derivatives - are the high hydrates. Both field and laboratory data indicate that the high hydrates are the borate minerals that form stable phases at the lowest temperatures: under the surface conditions...
The relation between fresh and salty ground water in southern Nassau and southeastern Queens counties, Long Island, New York
Nathaniel M. Perlmutter, J. J. Geraghty, J. E. Upson
1959, Economic Geology (54) 416-435
An investigation of the geology and ground-water conditions in a part of southwestern Long Island, including the construction of 8 deep and 5 shallow test and observation wells, has been completed by the Geological Survey in cooperation with the Nassau County Department of Public Works and the New York State Water Power and Control Commission.<span...
Geology and uranium-vanadium deposits of the slick rock district, San Miguel and Dolores counties, Colorado
D. R. Shawe, Norbert L. Archbold, G. C. Simmons
1959, Economic Geology (54) 395-415
Sedimentary rocks known in the Slick Rock district in southwestern Colorado range in age from Devonian (?) to Cretaceous, and aggregate about 13,000 feet in maximum thickness. Important uranium-vanadium production has come from deposits in the Salt Wash member of the Morrison formation of Late Jurassic age.The sedimentary rocks are gently folded in...
Ground-water provinces of India
George C. Taylor
1959, Economic Geology (54) 683-697
This paper gives a general resume of ground-water utilization and development and describes the occurrence of water in eight ground-water provinces of India. The paper is based in part on observations of the writer during 1951-55 and in part on earlier work of the Geological Survey of India. Ground water...